SSC JE Civil Engineering 30-Oct-2020 Shift 2 Paper

Concept:
Sun-Dried or Unburnt Clay Bricks:
● The Sun-dried or unburnt bricks are less durable and used for temporary or cheap structures.
● There are mainly three steps for manufactures are clay, molding, and drying.After the molding process, the bricks are left for dried from direct sunlight.
● The sun-dried bricks are not much strong and also less water and fire resistance. Hence, These should not be used at places exposed to heavy rains.
● It is believed that first-time bricks were used, in the sun-dried form (unburnt Bricks), in Egypt some 6000 years ago.